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Masja
2 days ago
15

With a perfectly balanced roulette wheel, in the long run, red numbers should turn up 18 times in 38. To test its wheel, one cas

ino records the result of 3,800 plays, finding 1,890 red numbers. Is that too many reds? Or chance variation?
(a) Formulate the null and alternative hypothesis as statements about a box model.

(b) The null says that the percentage of reds in the box is _______. The alternative says that the percentage of reds in the box is ________. Fill in the blanks.

(c) Compute z and P.

(d) Were there too many reds?
Mathematics
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For this query, the time presented seems unclear to me. I understand that the rate of return is determined by total return over the investment. Assuming Matt received $400 as dividends without reinvesting them into additional shares, his total return across two years amounted to $500. Conversely, if the dividends were reinvested into the stock—something that typically happens with a 401(k) or IRA—his ROI would render a mere 6% due to only a $100 gain on a $1500 investment. In an actual market scenario, it’s likely that Matt would have experienced about a 5% return on a solid stock, while Bella would have had approximately 0.05% from a savings account.

I hope this was helpful!;)

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3 months ago
a speed limit of 100 kilometers per hour is approximately equal to 62 miles per hour. write an equation relating kilometers per
Svet_ta [12734]
The conversion between these units is 1 km/hr = 0.62 m/hr
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2 months ago
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(5x - 3y)(25x² + 15xy + 9y²) Step-by-step explanation: 125x³ - 27y³ is a difference of cubes and can be factored as a³ - b³ = (a - b)(a² + ab + b²). Given 125x³ - 27y³ = (5x)³ - (3y)³, it can be written as (5x - 3y)((5x)² + (5x)(3y) + (3y)²) = (5x - 3y)(25x² + 15xy + 9y²).
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A hotel has 270 units. All rooms are occupied when the hotel changes $90 per day for a room. For every increase of x dollars in
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I believe it's around $62, though I'm uncertain. Sorry for the lack of precision, but wish you all the best in life! <3
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